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  • Specs9 · i3s

DS9 E-Tense 250 vs BMW i3s I01: which is truly faster?

Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.

grand tourer · 2021 vs 2018 · Methodology
DSPHEV

9 E-Tense 250

253 hp · 520 Nm · 1,900 kg · 2021

VS
BMWBEVFaster

i3s I01

184 hp · 270 Nm · 1,290 kg · 2018

Result · 0–100 km/h

ADS9 E-Tense 250

8.36 s

Gap1.55 sin favour of i3s
BBMW i3s I01

6.81 s

Summary · Caralogy simulation
Measure9 E-Tense 250i3s I01Gap
0–100 km/h8.36 s6.81 s1.55 s · i3s I01
400 m standing start16.22 s15.05 s1.17 s · i3s I01
1,000 m standing start28.57 s28.59 s0.02 s · 9 E-Tense 250
Top speed (electronically limited)235 km/h160 km/h75 km/h · 9 E-Tense 250
Power-to-weight ratio7.51 kg/hp7.01 kg/hpbetter ratio · i3s I01

Watch the race

Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.

DSPHEV9 E-Tense 250
Speed
0km/h
Timer
0,00s
Distance
0m
BMWBEVi3s I01
Speed
0km/h
Timer
0,00s
Distance
0m
100 m
200 m
300 m
400 m
500 m
600 m
700 m
800 m
900 m
1000 m
0m → 1000m
Gap0m

Stage-by-stage comparison

Simulated performance at each stage. Best value in bold.
Stage9 E-Tense 250i3s I01
0–30 km/h2.40 s1.77 s
0–50 km/h4.01 s2.96 s
0–80 km/h6.47 s4.95 s
0–100 km/h8.36 s6.81 s
0–120 km/h10.88 s9.25 s
0–160 km/h18.12 s16.98 s
0–200 km/h31.70 s-
400 m standing start16.22 s15.05 s
1,000 m standing start28.57 s · tight gap28.59 s
Top speed235 km/h160 km/h

Parameters and assumptions

Simulation

Start
Standing, straight line
Surface
Dry asphalt, 23°C
Wind
None
Driver
1 person, 75 kg

Calibration

Splits
0–100, 0–200 manufacturer
Power curve
Real measurement (Caralogy)
VMax
Manufacturer limited
Transmission
Losses integrated in model

Physics model calibrated on manufacturer splits. The limited top speed is not the real aerodynamic top speed of the vehicles.

Under the bonnet

Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.

DS

9 E-Tense 250

7,51kg/hpcompensated by −610 kg
CharacteristicValueDetail
Power253 hpPending
Torque520 Nm
Weight1 900 kgmanufacturer kerb weight
Drivetrain-
Gearbox8-speed automatic
BMW

i3s I01

7,01kg/hpratio better by 0,50 kg/hp
CharacteristicValueDetail
Power184 hpPending
Torque270 Nm
Weight1 290 kgmanufacturer kerb weight
DrivetrainPropulsion
GearboxAutomatic, single-speed with fixed ratio (9.665:1)

The start: 0 to 100 km/h

Off the line, the i3s hits 100 km/h in 6.81 s versus 8.36 s for the 9 E-Tense 250. At this point, the i3s leads by 1.55 s and sits roughly 24 m ahead.

From 100 km/h to 400 metres

At 200 metres, the i3s is doing 124 km/h against 121 km/h for the 9 E-Tense 250. The gap is 1.10 s. The challenger starts to claw back ground.

At 400 metres standing start, the i3s crosses the line in 15.05 s versus 16.22 s. The 1.17 s gap represents roughly 49 m of track - a gap visible to the naked eye.

Beyond 400 metres: top speed comes into play

Past 400 metres, the situation changes. The i3s maxes out at 160 km/h while the 9 E-Tense 250 keeps accelerating towards 235 km/h. At 600 metres, the gap has dropped to 1.09 s.

Around 994 metres, both vehicles are level. This is the inversion point: the 9 E-Tense 250 overcomes its launch deficit thanks to a 75 km/h higher top speed.

At 1,000 metres, the 9 E-Tense 250 finishes in 28.57 s versus 28.59 s. The 0.02 s delta shows an extremely tight race.

What the numbers don’t tell you

Electronically capped at 160 km/h, the i3s never reaches its natural aerodynamic ceiling in this duel. That’s not a physical limit of the motor - it’s a deliberate manufacturer decision, typically tied to standard-fit tyre ratings or model-range positioning.

With two plug-in hybrid powertrains, the difference comes down to power-to-weight ratio (7.51 kg/hp vs 7.01 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.32 seconds. The 1.55 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.

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Frequently asked questions

Over 0–100 km/h, i3s I01 wins (6,81 s vs 8,36 s).

9 E-Tense 250 goes from 0 to 100 km/h in 8,36 seconds (calibrated simulation).

9 E-Tense 250: 253 hp, ratio 7,51 kg/hp. i3s I01: 184 hp, ratio 7,01 kg/hp.

9 E-Tense 250: 235 km/h. i3s I01: 160 km/h.